# BN18

Postcode district covering Arundel, Yapton and Walberton, in Arun.

BN18 is a postcode district covering Arundel, Yapton and Walberton, in Arun. Median sale price £397,000 in 2025. Recorded crime 88.0 per 1,000 people.

Postcode district. Code BN18. In: [Postcodes](https://openindex.co.uk/postcode) › [BN](https://openindex.co.uk/postcode/bn)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an BN18 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £397,000** (2025). The median price paid for a home in BN18 was £397,000 in 2025. 612th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/bn18#f-house-sales-median-price
- **Population: 14,051** (2021). BN18 had 14,051 usual residents at the census (ONS Census 2021). 952nd least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/bn18#f-population
- **People in radon Affected Area squares: 64%** (2022). About 64% of people in BN18 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/bn18#f-radon-affected-share
- **Gigabit broadband coverage: 70.1%** (January 2026). In BN18, 70.1% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/bn18#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=BN18) (Worked out by Open Index · 2022): About 64% of people in BN18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=BN18) (Worked out by Open Index · 2025): 357 homes were sold in BN18 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=BN18) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for BN18.
- [Population by postcode district](https://openindex.co.uk/map/population?place=BN18) (Census 2021, England and Wales): BN18 had 14,051 usual residents at the census.

## How BN18 compares

Each postcode district against every other postcode district the measure covers.

| Measure | BN18 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £397,000 | 14th most expensive | 29 postcode districts, BN · 2025 |
| Population | 14,051 | 11th least populated | 33 postcode districts, BN · 2021 |
| People in radon Affected Area squares | 64% | joint 6th fewest people in radon Affected Areas | 33 postcode districts, BN · 2022 |
| Gigabit broadband coverage | 70.1% | 4th lowest | 33 postcode districts, BN · Jan 2026 |

## Is BN18 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in BN18 at a rate of 88.0 per 1,000 people.
That compares with 101.8 per 1,000 people across the BN postcode area.
In August 2026 alone, 112 cases of crime and anti-social behaviour were recorded in BN18.
In the 12 months to August 2026, the most common types were violence and sexual offences (417), anti-social behaviour (349) and other crime (210).
A year earlier, the recorded crime rate in BN18 was 93.7 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in BN18, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so BN18 has no single figure. Of its 9 neighbourhoods with a rank:
- Decile 3: 1 neighbourhood
- Decile 5: 4 neighbourhoods
- Decile 6: 3 neighbourhoods
- Decile 8: 1 neighbourhood

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in BN18

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Arun 001A](https://openindex.co.uk/arun/neighbourhood/e01031390) | 1,348 | 66.0 per 1,000 | 5 | 39.0% |
| [Arun 001B](https://openindex.co.uk/arun/neighbourhood/e01031391) | 1,488 | 35.4 per 1,000 | 8 | 69.5% |
| [Arun 001C](https://openindex.co.uk/arun/neighbourhood/e01031392) | 1,539 | 155.6 per 1,000 | 5 | 65.2% |
| [Arun 001D](https://openindex.co.uk/arun/neighbourhood/e01031465) | 1,362 | 112.7 per 1,000 | 6 | 28.1% |
| [Arun 003F](https://openindex.co.uk/arun/neighbourhood/e01031466) | 1,552 | 35.4 per 1,000 | 6 | 58.4% |
| [Arun 006A](https://openindex.co.uk/arun/neighbourhood/e01031470) | 1,817 | 77.1 per 1,000 | 6 | 68.1% |
| [Arun 006B](https://openindex.co.uk/arun/neighbourhood/e01031471) | 2,260 | 72.7 per 1,000 | 5 | 96.4% |
| [Arun 006C](https://openindex.co.uk/arun/neighbourhood/e01031472) | 1,594 | 98.6 per 1,000 | 5 | 90.9% |
| [Arun 006D](https://openindex.co.uk/arun/neighbourhood/e01031473) | 1,241 | 196.4 per 1,000 | 3 | 93.3% |

## Your MP

- [Arundel and South Downs](https://openindex.co.uk/constituency/arundel-and-south-downs): Andrew Griffith (Conservative), MP since July 2024. 67% of the people here.
- [Bognor Regis and Littlehampton](https://openindex.co.uk/constituency/bognor-regis-and-littlehampton): Alison Griffiths (Conservative), MP since July 2024. 32% of the people here.
- [Worthing West](https://openindex.co.uk/constituency/worthing-west): Dr Beccy Cooper (Labour), MP since July 2024. 1.4% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in BN18

[Arundel](https://openindex.co.uk/arun/arundel), [Yapton & Climping](https://openindex.co.uk/arun/yapton-and-climping)

## Postcode sectors in BN18

[BN18 0 (364 postcodes)](https://openindex.co.uk/postcode/bn18-0), [BN18 8 (8 postcodes)](https://openindex.co.uk/postcode/bn18-8), [BN18 9 (216 postcodes)](https://openindex.co.uk/postcode/bn18-9)

## Council

[Arun](https://openindex.co.uk/arun)

## Postcode districts next to BN18

[BN16](https://openindex.co.uk/postcode/bn16), [BN17](https://openindex.co.uk/postcode/bn17), [PO18](https://openindex.co.uk/postcode/po18), [PO20](https://openindex.co.uk/postcode/po20), [PO22](https://openindex.co.uk/postcode/po22), [RH20](https://openindex.co.uk/postcode/rh20)

## Nearest rail stations

[Arundel (4.5 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.5462,50.8482), [Ford (4.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.5784,50.8294), [Barnham (5.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.6397,50.8309), [Amberley (5.2 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.5420,50.8967)

## More in the BN postcode area

[All BN postcode districts](https://openindex.co.uk/postcode/bn), [Every UK postcode area](https://openindex.co.uk/postcode)

## BN18 in brief

BN18 is a postcode district covering Arundel, Yapton and Walberton, in Arun.
About 15,243 people lived in BN18 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £397,000 in 2025 across 357 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 88.0 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in BN18 was £397,000 in 2025.
BN18 had 14,051 usual residents at the census.
About 64% of people in BN18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In BN18, 70.1% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: BN18
- Postcode area: [BN](https://openindex.co.uk/postcode/bn)
- Constituency: [Arundel and South Downs †](https://openindex.co.uk/constituency/arundel-and-south-downs)
- Council: [Arun †](https://openindex.co.uk/arun)
- Area: 100 km²
- People, mid-2024: 15,243*
- Neighbourhoods: 9
- Output areas: 46

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[RH20](https://openindex.co.uk/postcode/rh20), [BN17](https://openindex.co.uk/postcode/bn17), [BN16](https://openindex.co.uk/postcode/bn16), [PO22](https://openindex.co.uk/postcode/po22), [PO20](https://openindex.co.uk/postcode/po20), [PO18](https://openindex.co.uk/postcode/po18)

## Latest updates for BN18

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/BN18

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/bn18, or to one figure with its anchor, https://openindex.co.uk/postcode/bn18#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/bn18